On 19 Nov, Kenneth D. Merry wrote: > On Thu, Nov 19, 2015 at 12:48:41 -0600, Matthew D. Fuller wrote: >> On Wed, Nov 18, 2015 at 12:13:09PM -0500 I heard the voice of >> Kenneth D. Merry, and lo! it spake thus: >> > >> > Testing and comments are welcome. >> >> GELI does explicit handling of each BIO type, so will need to be >> updated to pass it through (possibly in the form of inverting the >> default handling?) or it'll just EOPNOTSUPP it, whether the underlying >> layer does or not. I wouldn't be surprised if there were other geom >> layers that did similar things. >> >> Not meant to be read as some kind of "you need to"; just a comment on >> a possible [lack of] impact. > > You're correct. For GEOM classes like GELI that don't change the layout on > disk, passing the BIO_ZONE bio through would be the right thing to do. > > For those that change the layout (i.e. the lba you write on the virtual > disk doesn't match what goes down to the physical disk), like graid or
partitioning or > gstripe, I think all we really need to do is just make sure they return > EOPNOTSUPP. If someone wants to modify that code to handle shingled disks, > they can certainly do that. > > Ken _______________________________________________ firstname.lastname@example.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"